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(No Model.) 2 sheets-sheet *1. R. F. HATPIELD.'

GAS 1.3RESSUR1'A REGULATOR.

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. R. E. HATEIELD.

GAS PRESSURE REGULATOR. No. 334,773. Patented Jan. 26, 1886.

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ATTORNEYS.

Nrrizn STATES PATENT Orricri.

ROBERT F. HATFIELD,OF NEW YORK, N. Y.

GAS-PRESSURE REGULATOR.

SPECIFICATION forming part of Letters Patent No. 334,773, dated January26, 1886 Application tiled April 25, 1885. Serial'No. 163,457. (Nomodel.) i

To @ZZ whom it may concern:

Be it known that I, ROBERT F. HATFIELD, of the city, county, and Stateof New York, have invented certain new and useful I|nprovements inGas-Pressure Regulators, of which the following is a full, clear, andexact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the gures.

Figure lis a sectional side elevation of one of myimproved gas-pressureregulators. Fig.

2 is a sectional view of a part of the same,`

taken through the line a; x, Fig. l, and looking upward. Fig. 3 is abottom view of the casting attached to the bottom of the case of theregulator. Fig. 4 is a sectional side elevation ofthe outer or slottedpipe. Fig. 5 is a sectional side elevation of a modification of myimproved gaspressure regulator.

The object of this invention is to provide gas-pressure regulatorsconstructed in such a manner that the iioat-valve and the regulatorvalveshall be entirely independent of each other, so that the float-valve cansettle to its seat with only the resistance of the gas-pressure in theinlet-pipe and without having to draw down the regulator with it.

The invention consists in the combination, with the inlet-pipe andregulator having valve apparatus operated by the gas-pressure, of aiioat and attached valve operated by the rise and fall ofthe liquid, andin the construction and combination of various parts of the gaspressureregulator, as will be hereinafter fully described, and then pointed outin the claims.

A represents the case of the regulator, the top of which may be solderedor otherwise firmly secured in place.

In the top of the case A, near one side, is formed a hole, B, throughwhich water or other suitable liquid can be poured into the said case.

In the side ofthe case A is formed an overiiow-hole, B, to prevent theliquid from rising too high in the case when the said case is beinglled. The holes B B are closed with screw caps or plugs G C', exceptwhen supplying the case A with liquid.

In the center of the top of the case A is formed a pin-hole, B2, so thatthe air-pressure will be the same within and without the said.

` case.

NVithin the case A is placed the regulator Dwhich is made of the sameshape as the said case A, but smaller, so that there will be a spacebetween the walls and the tops of the said case and regulator, as shownin the drawings. The regulator D is made with a close top and an openbottom, and within it is placed the oat E, which is made smaller thanthesaid regulator D, so that the said float can move up and down freelywithin the said regulator. The float E is made in annular form, and tothe lower end of its inner wall Vare secured arms F, which pass throughslots G in the lower part of the pipe H, the

tops of the said slots G serving as stops for the float E in its upwardmovement. rIhe lower end of the pipeHpasses through a hole in the centerof the bottom of the case A, and is screwed into the enlarged upper partofthe opening I through the casting J, secured to the bottom of the saidcase A. The lower part of the smaller portion of the opening I isdesigned to receive a gas-pipe, and into the upper partof the saidsmaller portion of the opening I is screwed the inlet-pipe K, whichprojects upward into the interior of the regulator D. The inner ends ofthe arms F are secured to the lower end of the pipe L, which fits uponthe inlet-pipe K, and slides up and down upon it as the oat E rises andfalls.

If desired, the arms F can be made in the form of an annular plate,having apertures through it to receive the arms formed in the lower partof the pipe H by the slots G, as shown in Fig. 2. rIhe upper end, M, ofthe pipeL is closed, and is made in the form of a truncated cone, to titupon the beveled upper end of the inlet-pipe K, and serve as a valve toclose the said inletpipe K when the float E has nearly reached thebottom of the case A.

In the upper part ofthe pipe L, just below its conical top, are formedopenings N, which are wholly uncovered when the float E and pipe L areat the upper end of their movenient, and through which openings the gaspasses on its way from the inlet-pipe K to the regulator D. With thisconstruction, as the liquid in the case A lowers and the float E ICO andpipe L descend, the oat-valve Mis gradually closed, and is entirelyclosed before the said liquid becomes so low that there would be dangerof gas escaping, so that the action of the loat-valve is independent ofthe regulator. The upper end of the pipe H is provided with aninwardly-projecting annular.

ange, having its inner edge beveled to form an opening or seat, O, forthe cone-valve P, which is attached to the top of. the regulator D.

In the lower part of the cone P are formed openings Q, through which thegas passes from the inner to the outer side of the said valve P, so thatit can pass through the upper end of the pipe H into the regulator D,when the valve P is lowered from its seat or opened.

To the lower edge of thevalve P is secured the upper end of theguide-pipe R, which lits against the inner surface of the pipe H,tocause the valve P to move up and down vertically, and to bring itsquarely to its seat O. With this construction the pressure upon the gaswill be controlled entirely by the weight of the regulator D, and can beincreased or lessened at will by placing weights upon the said regulatoror removing them therefrom.

In the casting .I is formed a second opening, S, into the lower part ofwhich is designed to be screwed the pipe leading to the burners, andinto the upper part of vwhich is screwed the lower end of .the outletpipe T, which passes watertight through an aperture in the. bottom ofthe case A, and projects upward into the upper part of the regulator D.

In the modification shown in Fig. 5, the lower part of the pipe Ii iscut off, so that the float E can be attached directly to the pipe L, thelower end ofthe pipe H serving as a stop for the float E to strikeagainst at the end of its upward movement. In this case the float E andpipe H must be inclosed by a casing, U, to support the pipeH and toprevent gas from escaping through the lower end of the pipe H into theregulator when the loat E is out of contact with the said pipe,asmallhole,V,being formed in the upper part of the pipe H, to equalize thegas-pressure between the pipe H and the casing U, andahole, W. beingformed in the lower part of the casing U, for the free passage of theliquid in the case A, so that the said liquid will stand at the sameheight within and without the said casing U.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with the inlet-pipe and regulator, having valveapparatus operated by the gas-pressure, of an independent float andattached valve operated by thev rise and fall of the liquid,substantially as shownand described.

2. In a gas-pressure regulator, the combination, with the case A, theregulator D, the float E, and the inlet-pipe K, of the pipe L, connectedat its lower end with the said ioat, having a closed conical upper end,M, and provided with apertures N at its upper end, and the pipe H,substantially as herein shown and described, whereby the gas will beshut off independent of the regulator by the downward movement of theoat, and the upward ,movement of the said loat will be limited, as

set forth.

3. In a gas-pressure regulator, the combination, with the case A, theregulator D, and the pipe H, having Valve-seat O at its upper end, ofthe cone-valve P, having apertures Q in its sides, and provided with aguide-pipe, R, sliding upon the inner surface of the said pipe H,substantially as herein shown and described, whereby the gas-pressure isregulated independent of the float, as set forth.

ROBERT F. HATFIELD.

Witnesses:

EDGAR TATE, WILLIAM ALBERT MILLEG.

